Biotechnology - Performance criteria for vessels - Part 4: Bioreactors; German version EN 13311-4:2001
Edition 2001-06

Microbiology of the food chain - Method validation - Part 6: Protocol for the validation of alternative (proprietary) methods for microbiological confirmation and typing procedures (ISO 16140-6:2019); German version EN ISO 16140-6:2019
Edition 2020-04

Biotechnology - Equipment - Guidance on sampling and inoculation procedures; German version EN 13092:1999
Edition 2000-02

Water quality - Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods (ISO 17994:2014); German version EN ISO 17994:2014
Edition 2014-06

Caseins - Determination of "fixed ash" (Reference method) (ISO 5544:2008)
Edition 2020-12

Agricultural machinery - Slurry tankers - Safety; German version EN 707:2018
Edition 2019-12

Microbiology of the food chain - Horizontal method for the detection and enumeration of Enterobacteriaceae - Part 2: Colony-count technique (ISO 21528-2:2017, Corrected version 2018-06-01); German version EN ISO 21528-2:2017
Edition 2019-05

Biological equipment for treating air and other gases - Requirements and application guidance for deodorization in wastewater treatment plants (ISO 23139:2023)
Edition 2024-07

Cosmetics - Microbiology - Detection of Escherichia coli (ISO 21150:2015 + Amd 1:2022); German version EN ISO 21150:2015 + A1:2022
Edition 2023-01

Cosmetics - Microbiology - Detection of specified and non-specified microorganisms (ISO 18415:2017 + Amd 1:2022); German version EN ISO 18415:2017 + A1:2022
Edition 2023-01